The Stanley FatMax FMMT13035-0 is a 12mm combination wrench with an open jaw and a 12-point ring end. The anti-slip surface treatment on the open jaw reduces the chance of slipping off fastener flats, particularly on fixings that have seen some corrosion or where previous attempts with the wrong tool have started to round the corners.

12mm is a widely used metric size across general construction, mechanical fixings, and industrial maintenance. M8 bolts commonly use a 12mm head or nut, and these appear on structural brackets, racking systems, machinery guards, and vehicle components. The combination design gives you both options in one tool: the ring end for maximum grip and torque on fully accessible fasteners, and the open end for situations where adjacent structure prevents full ring engagement.

Chrome vanadium steel construction provides the durability expected of a daily-use trade spanner. The FatMax anti-slip treatment is a practical feature that adds grip without adding bulk to the jaw profile.

Key Specifications: Size: 12mm. Type: Combination (open + 12-point ring). Material: Chrome vanadium steel. Surface: Anti-slip jaw treatment. Model: FMMT13035-0. Weight: 0.066kg. Dimensions: 216 x 24 x 44mm.